45
DESCALING
DESCALING
46
From time to time, clean the machine casing with
a damp cloth and dry it.
Clean the pre-ground coffee container (14) with
the aid of the brush supplied whenever necessary.
Central unit
Clean the central unit (22) whenever the coffee
bean container has been re-filled, or at least
once or twice a week.
Switch off the machine by pressing the main
switch (4) and open the service door (19).
Remove the coffee grounds container (1).
35
Remove the central unit (22) by holding the
handle and pressing the “PRESS” key.
Wash the central unit with warm water without
any solvent. Make sure there are no coffee
residues on the two steel filters.
36
Remove the superior filter by means of the supplied
screw and clean it. Unscrew the screw, turning it
counterclockwise. Then, dry all the parts of the
central unit and tighten the filter with the screw.
37
Remove the coffee rest drawer (23) and clean it,
using a non-abrasive solvent.
Clean the service space thoroughly and fit the
coffee rest drawer again.
38
By holding the central unit by its handle, slide it
back into its original position, making sure it is
correctly engaged. Then close the service door.
Insert the coffee grounds container again.
When fitting the central unit, do not press
“PRESS” (this may cause damage to the
machine)!
Warning:
if the central unit is not correctly fitted,
the display shows
"BREW UNIT MISS. "
It is not possible to brew coffee. The machine
does not work.
Coffee grinder
Never fill the coffee grinder with water: it may
damage the machine!
Descaling
Descaling is necessary to remove limescale from
all surfaces and holes, thus ensuring a perfect
operation of valves, heating controls and other
important parts.
Note:
due to the complexity of the coffee
machine hydraulic circuit, the following descaling
cycles (automatic and standard) do not allow the
descaling of all tubes.
In fact, easily accessible components such as the
central unit (22) and its plastic connection are
excluded.
The machine must be descaled every 3-4 months,
according to the water hardness degree. A more
frequent descaling is recommended wherever
the water hardness degree is very high.
This machine is supplied with a particular warning
light
"DESCALING "
"READY FOR USE "
Descaling must be carried out at the latest when
this message is displayed. In spite of the message,
the machine does not stop working.
Furthermore, said display warning may be
adjusted according to the water hardness degree.
The machine has been adjusted at the factory to
25° fH value, which causes the display to switch
on showing the message DESCALING after
approx 150 l.
The water hardness value may be changed, if
necessary, following the instructions shown on
page 37.
The following adjustments are possible:
Hardness 4:
high water hardness, over 29°fH
(14° dH), approx. 80 l water passage.
Hardness 3:
medium water hardness, approx.
20°-29°fH (7°-14° dH), approx. 150 l water
passage
Hardness 2:
soft water, approx. 12°-20°fH
(4°-7° dH), approx. 300 l water passage
Hardness 1:
less than 10°fH (3° dH), approx.
500 l water passage
In case of hard water, a filter should be used
both to improve the coffee quality and to protect
the machine, thus reducing the descaling
frequency.
Note:
for this purpose, use a descaling product
suitable for coffee machines.
Never use
vinegar to clean the machine; it might
damage it.
There are two ways to carry out the descaling of
the machine:
Automatic descaling
Set the machine on the programming mode (see
page 38).
Move the asterisk to the menu item DESCALING using
the keys
and press
MENU
to activate it.
The display shows:
"DESCALING "
Pour a descaling solution into the water tank
(according to the instructions on the package).
Place a large container under the steam/hot
water dispensing tube and open the steam/hot
water knob slowly. The automatic descaling
starts. Small quantities of descaling solution are
pumped into the circuit. Then the pump stops to
let the solution take effect.
The display shows:
"MACHINE IS "
"DESCALING "
This operation takes about 45 minutes. As soon
as descaling is completed, the display shows:
"DECALING "
"FINISHED "
and the pump stops.
Turn the hot water off. Press the
MENU'
key. The
display shows that the machine needs to be
rinsed to clean any descaling remains.
"RINSE MACHINE "
"FILL WATERTANK "
Remove the water tank, rinse it and fill it with
water. Clean the machine using the hot water
knob and let the whole tank content flow out. The
display shows:
"RINSING "
"FINISHED "
0339.951 ed. 01 10/00 ING (UL)
11-12-2000, 18:07
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